The TE model 8911N wireless vibration sensor combines an accelerometer, a data collector, and a radio into one compact, battery-operated device that measures both vibration and temperature data. It was designed for hash environment and comes with the ATEX certification. The model 8911N wireless accelerometer uses the LoRaWAN™ communication protocol, offering a simple, reliable, and secure means of expanding condition-based maintenance into plant areas where the cost to install wired systems is prohibitive, making data available to existing process control and information systems. In addition to that, it offers a Bluetooth Low Energy interface to ease the embedded settings configuration at the sensor installation. The model 8911N incorporates a piezo-electric accelerometer which offers a wide bandwidth to >15kHz, outstanding measurement resolution and superior long-term stability compared to design using MEMS solutions. The 8911N contains digital signal processing capability that provides an FFT analysis of the sensed vibration. The output data describes the center frequency, peak value, bandwidth, and percent of the total spectral content for the eight most significant acceleration peaks in the vibration signal. Because of this feature, the 8911N directly provides the data most needed to plot trends and monitor changes in the performance and condition of factory machinery.
